#include <stdio.h>
typedef unsigned char *byte_pointer;
void show_bytes(byte_pointer start,size_t len){
 size_t i;
 for(i=0;i<len;i++)
  printf("%.2x",start[i]);
printf("\n");
}

void show_int(int x) {
show_bytes((byte_pointer) &x,sizeof(int));
}

void show_float(float x){
show_bytes((byte_pointer) &x,sizeof(float));
}

void show_pointer(void *x){
show_bytes((byte_pointer) &x,sizeof(void *));
}
 int main()
 {
 int i = 0x12345678;
 char *m;
 m=(char *)&i;
 if(*m==0x78)
 printf("学号20165226的笔记本电脑是小端\n");
 else printf("学号20165226的笔记本电脑是大端\n");
 }
